rs4987188
A SNP in the MSH2 gene on chromosome 2. Its most notable genotype is G;G: common in complete genomics
- Gene
- MSH2
- Location
- Chr 247,416,318 (GRCh38)
- Highest magnitude
- 0.0Typical
- Tested on
- 23andMe, AncestryDNA, FamilyTreeDNA
- Minor allele frequency
- <1%
Genotypes
As shown in 23andMe and AncestryDNA files.
On SNPedia: (G;G). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.
Frequency
Share of each genotype in 10 HapMap populations.
- AverageG;G 97%
- European ancestry (Utah)G;G 94%
- Han Chinese (Beijing)G;G 97%
- Japanese (Tokyo)G;G 100%
- Yoruba (Nigeria)G;G 98%
- African ancestry (Southwest US)G;G 95%
- Chinese (Denver)G;G 99%
- Gujarati IndianG;G 96%
- Luhya (Kenya)G;G 98%
- Mexican ancestry (Los Angeles)G;G 93%
- TuscanG;G 96%
Related
Other MSH2 SNPs
- rs63750245T;TLynch syndrome; hereditary nonpolyposis colorectal cancer-1Very important
- rs63750875C;CLynch syndrome; hereditary nonpolyposis colorectal cancer (HNPCC1)Very important
- rs63751449-;-Lynch syndrome; hereditary nonpolyposis colorectal cancer-1Very important
- rs12476364A;GLynch syndrome, pathogenic mutationVery important
- rs28929483C;TLynch syndrome, pathogenic mutationVery important
- rs28929484C;TLynch syndrome, pathogenic mutationVery important
- rs34986638G;TLynch syndrome, pathogenic mutationVery important
- rs63749802G;TLynch syndrome, pathogenic mutationVery important
Source and license
Adapted from rs4987188 on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.
SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.